Justin Bieber can't wait to have his first autobiography published. He said he has put a lot into the chapter about his first pube

MONTREAL, Canada -- Sixteen-year-old pop singer Justin Bieber has signed a deal to publish an illustrated memoir entitled Justin Bieber: Now & Until My Balls Drop, publisher HardyHarHar said in a statement on Monday.

The book is due out in October in both 3D-pop-up and Coloring-in-the-Pictures editions.

The 3D-Pop-Up edition is expected to reveal the Canadian-born youngster's incredible ability to color in between the lines. It will contain exclusive, never-before-seen photos of Bieber playing in the sandpit at school, as well as his first visit to Santa at age 1--a meeting that ended in massive tears and a soiled diaper.

"Every day I wake up and practice counting to 10 on my fingers, then do my ABC's," Bieber said in the statement. "My fans have played such a large part in all of this and they help me live my dreams every day that those not old enough to understand what the actual term of "music" means, helps me rake in millions of dollars. I'm excited to take just a little bit more of their money through this book."

Bieber first gained fans when he drew, in bluepencil, a picture of his Mom with 25 banana-like fingers on each hand. The work won a K-Mart drawing contest in the under-5-year-old category. Now, at 16, he boasts the ability to draw with marker pens. He can also cross the street--all by himself.

His "winning" picture earned him a lollipop and a certificate from his local K-mart, which will be displayed inside the upcoming memoir.

Fans of Bieber are already guessing what disclosures to expect inside the memoir. So far, the only confirmed leak is the title of Chapter 16; "Thank God I rose to fame after Michael."